Should be fine, though it will increase disk usage in dc1 for a while - a reference to the the cleaned up sstables will be held by the rebuild streams, causing you to temporarily increase disk usage until rebuild finishes streaming
-- Jeff Jirsa > On Dec 22, 2017, at 4:30 PM, Peng Xiao <2535...@qq.com> wrote: > > Hi there, > Can we run nodetool cleanup in DC1,and run rebuild in DC2 against DC1 > simultaneously? > in C* 2.1.18 > > > Thanks, > Peng Xiao >
